Helix Sleep has built its reputation on offering personalized comfort through a diverse lineup of hybrid mattresses tailored to different sleep styles. Among its softest offerings, the Helix Moonlight stands out for its unique combination of plush comfort and responsive support. Designed especially for side sleepers and lightweight individuals, the Moonlight provides a gentle, cloud-like feel without sacrificing bounce or breathability.
In this comprehensive 2025 review, we’ll explore the Helix Moonlight’s construction, firmness, cooling performance, motion isolation, durability, and value. Whether you’re upgrading your sleep setup or searching for a mattress that feels like a gentle hug, the Moonlight might be your perfect match.
Construction and Materials
The Helix Moonlight is a hybrid mattress, meaning it combines foam layers with a coil support system. This design offers contouring comfort, responsiveness, and long-term durability.
Cover
The standard cover is a breathable knit fabric that feels soft and cool. For hot sleepers, Helix offers an upgrade to the GlacioTex Cooling Cover, which uses phase-change materials to regulate temperature and wick away heat.
Comfort Layer
At the top lies Helix Dynamic Foam, a latex-like material that provides a soft, responsive feel. Unlike memory foam, it doesn’t trap heat or cause a “stuck” sensation, making it ideal for combination sleepers.
Transition Layer
Beneath the comfort layer is High-Grade Polyfoam, which adds gentle support and helps maintain spinal alignment. This layer ensures smooth transition into the coil base.
Support Layer
The core features individually wrapped coils that respond to movement and provide zoned support. Reinforced edges improve edge support and durability.
Base Layer
A layer of high-density polyfoam stabilizes the mattress and supports the coil system.
This thoughtful construction results in a mattress that’s soft, breathable, and responsive—ideal for side sleepers and those who prefer a plush feel with bounce.
Firmness and Feel
Helix rates the Moonlight as a soft mattress, and most testers place it around a 4 out of 10 on the firmness scale. It offers a plush surface with gentle contouring and a buoyant feel.
Side Sleepers – The Moonlight excels for side sleepers, especially those under 130 lbs. The soft foam cushions pressure points like shoulders and hips, promoting spinal alignment and reducing discomfort.
Back Sleepers – Lightweight back sleepers may find the Moonlight comfortable, but average to heavier individuals might prefer a firmer model like the Helix Dusk or Midnight.
Stomach Sleepers – The softness may cause hips to sink too deeply, leading to misalignment. Stomach sleepers are better off with firmer options like the Helix Twilight.
Combination Sleepers – The Moonlight’s responsive design makes it easy to switch positions. It’s a great choice for those who move around during the night and want a soft but springy feel.
Cooling and Temperature Regulation
Soft mattresses often struggle with heat retention, but the Moonlight addresses this with breathable materials and optional cooling upgrades.
- Breathable Coil Base: Promotes airflow and prevents heat buildup.
- Optional Cooling Cover: The GlacioTex upgrade actively cools the surface.
In testing, the Moonlight performed well in temperature regulation. With the cooling cover, it’s a solid choice for hot sleepers who prefer a soft mattress.
Motion Isolation and Edge Support
Motion Isolation
Despite its coil base, the Moonlight offers solid motion isolation. The foam layers absorb movement, making it suitable for couples.
Edge Support
Reinforced coils around the perimeter provide strong edge support. You can sit or sleep near the edge without feeling unstable.
Durability and Longevity
The Helix Moonlight is built to last. With high-quality materials and a sturdy coil system, it’s expected to maintain its shape and support for 7–10 years. The 15-year warranty adds peace of mind.
Users report minimal sagging and consistent performance over time. The edge support and responsiveness remain strong even after years of use.
Pricing and Value
As of 2025, the Helix Moonlight is priced competitively:
| Size | Price (Standard) | Price (With Cooling Cover) |
| Twin | $936.30 | $1,061.30 |
| Full | $1,249.30 | $1,374.30 |
| Queen | $1,374.30 | $1,499.30 |
| King/Cal King | $1,748.80 | $1,873.80 |
Helix frequently offers discounts, especially during seasonal sales. The mattress also comes with:
- 100-night sleep trial
- Free shipping
- 15-year warranty
These features make the Moonlight a strong value for its quality and comfort.
Who Is It Best For?
Ideal For:
- Side sleepers needing pressure relief
- Lightweight individuals
- Combination sleepers who change positions
- Couples seeking motion isolation
- Hot sleepers (with cooling cover)
Not Ideal For:
- Stomach sleepers
- Heavier individuals needing firmer support
- Those who prefer deep contouring or memory foam feel
Comparison to Other Helix Models
Helix offers a range of mattresses tailored to different sleep styles. Here’s how the Moonlight compares:
| Model | Firmness | Best For | Price (Queen) |
| Sunset | Soft | Side sleepers | $1,374.30 |
| Moonlight | Soft | Lightweight combo sleepers | $1,374.30 |
| Midnight | Medium | Combo sleepers | $1,374.30 |
| Dusk | Medium | Back sleepers | $1,374.30 |
| Twilight | Firm | Stomach sleepers | $1,374.30 |
| Moonlight Luxe | Soft | Luxury comfort sleekers | $2,373.80 |
The Moonlight Luxe adds zoned lumbar support, a pillow top, and enhanced cooling—ideal for those seeking a more luxurious soft mattress.
Final Verdict
The Helix Moonlight mattress is a top-tier hybrid option for sleepers seeking soft comfort with responsive support. Its design caters specifically to lightweight side and combination sleepers, offering a plush surface that promotes pressure relief and ease of movement. With solid motion isolation, edge support, and a generous trial period, it’s a well-rounded mattress that delivers consistent performance night after night.
Verdict: A soft, responsive hybrid mattress perfect for lightweight side and combo sleepers.
If you’re looking for a mattress that feels like a gentle hug but still lets you move freely, the Helix Moonlight is a smart choice.